The man died in the pair's West Albury home in the early hours of September 1, 2016.

They had been using ice hours before the stabbing and an argument started at the Hibiscus Crescent house.

The woman, who cannot be identified, became angry and took a 34-centimetre kitchen knife, walked up to the late man as he was sitting on a black couch, and stabbed him in his arm and thigh.

He fell to the floor and was dragged into a bathroom where the woman tried to perform CPR.

A call was made to triple zero and the woman told the operator that two or three unknown men had entered the home and one had stabbed the victim.

OTHER COURT NEWS:

When paramedics arrived, the woman was sitting on top of the victim, who was clearly dead.

"Two guys had come," she said to one of the paramedics.

"People come to our door at any time of the night.

"There was an argument.

"They operated on his brain and injected syphilis.

"He has Hep C."

Her lawyers admitted in the Supreme Court at Albury she stabbed the man, but argued she was not guilty on mental health grounds.

A judge ordered the woman be detained in a correctional facility or other service.

The court heard she requires ongoing psychiatric care and suffered a chronic schizophrenic illness.

She had distressing delusional beliefs, had auditory hallucinations, and severe thought disorder.

During a police interview, the woman made bizarre claims, including that she heard voices through the late man's two-way radio, telling the man to bash her.

"One of my daughters who I didn't give birth to got beheaded to give him a brain, she was a four-year-old ... the eggs were sucked out of me," she said.

The pair had taken ice and attended the APCO service station on Mate Street before the stabbing, but she said she didn't think the meth "made me go mental".

"I think it was actually the clover leaf," she told police.

"Like the fact that he put clover leaf in my marijuana to try and kill me."

An autopsy found the victim died from blood loss.

The woman has remained in custody or treatment since the morning of the stabbing.

A review had found the woman unfit for trial but the matter proceeded on indictment with a plea of not guilty.

The judge did not put a timeframe on how long she must serve in treatment.

A psychologist said her long-term prognosis was relatively poor, given the seriousness of the offence, substance abuse and the severe nature of her schizophrenic illness.

Receive our daily newsletter straight to your inbox each morning from The Border Mail. Sign up here